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A Note on the Five-Circle Theorem

by Jordan B. Tabov (Bulgarian Academy of Sciences)

This article originally appeared in:
Mathematics Magazine
April, 1990

Subject classification(s): Geometry and Topology | Geometric Proof | Solid Geometry | Prisms
Applicable Course(s): 4.9 Geometry | 4.10 Math for High School Teachers

The author shows geometrically that two congruent incircles constructed inside a triangle imply the congruence of the other two incircles.

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